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Xanthiosite

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About XanthiositeHide

Formula:
Ni3(AsO4)2
Colour:
Golden yellow
Lustre:
Waxy, Dull, Earthy
Hardness:
4
Specific Gravity:
5.37
Crystal System:
Monoclinic
Name:
Named in 1869 by Gilbert Joseph Adam from the Greek "xanthos", yellow, plus "thion", sulphur, alluding to its sulphur yellow color.
This page provides mineralogical data about Xanthiosite.


Classification of XanthiositeHide

Approved, 'Grandfathered' (first described prior to 1959)
8.AB.25

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
B : With medium-sized cations
Dana 7th ed.:
38.3.2.1
38.3.2.1

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
3 : (AB)3(XO4)2
20.10.8

20 : Arsenates (also arsenates with phosphate, but without other anions)
10 : Arsenates of Co and Ni

Physical Properties of XanthiositeHide

Waxy, Dull, Earthy
Transparency:
Translucent
Colour:
Golden yellow
Hardness:
Hardness Data:
Measured
Tenacity:
Brittle
Density:
5.37 g/cm3 (Measured)    5.37 g/cm3 (Calculated)

Chemical Properties of XanthiositeHide

Formula:
Ni3(AsO4)2

Crystallography of XanthiositeHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/a
Cell Parameters:
a = 10.174 Å, b = 9.548 Å, c = 5.766 Å
β = 92.98°
Ratio:
a:b:c = 1.066 : 1 : 0.604
Unit Cell V:
559.36 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Powdery
Comment:
Min Mag 35:72 (1965)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.32 (60)
3.90 (50)
3.67 (50)
3.46 (80)
2.75 (80)
2.68 (80)
2.62 (60)
2.53 (100)
Comments:
ICDD 18-874

Type Occurrence of XanthiositeHide

Geological Setting of Type Material:
As-Ni-U ore deposit
Associated Minerals at Type Locality:

Other Language Names for XanthiositeHide

German:Xanthiosit
Simplified Chinese:黄砷镍矿
Spanish:Xanthiosita
Traditional Chinese:黃砷鎳礦

Common AssociatesHide

Associated Minerals Based on Photo Data:
Aerugite2 photos of Xanthiosite associated with Aerugite on mindat.org.
Petewilliamsite2 photos of Xanthiosite associated with Petewilliamsite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.AB.BorisenkoiteCu3[(V,As)O4]2Mon. 2/m : P21/b
8.AB.05FarringtoniteMg3(PO4)2Mon. 2/m
8.AB.10FerrisickleriteLi1-x(Fe3+xFe2+1-x)PO4Orth.
8.AB.10Heterosite(Fe3+,Mn3+)PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10LithiophiliteLiMn2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10NatrophiliteNaMn2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10Purpurite(Mn3+,Fe3+)PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10SickleriteLi1-x(Mn3+xMn2+1-x)PO4Orth.
8.AB.10SimferiteLi(Mg,Fe3+,Mn3+)2(PO4)2Orth.
8.AB.10TriphyliteLiFe2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10KarenwebberiteNa(Fe2+,Mn2+)PO4Orth. mmm (2/m 2/m 2/m) : Pnma
8.AB.15Sarcopside(Fe2+,Mn2+,Mg)3(PO4)2Mon. 2/m : P21/b
8.AB.15Chopinite(Mg,Fe2+)3(PO4)2Mon. 2/m : P21/b
8.AB.20BeusiteMn2+Mn2+2 (PO4)2Mon.
8.AB.20GraftoniteFe2+Fe2+2(PO4)2Mon. 2/m : P21/b
8.AB.30LammeriteCu3(AsO4)2Mon.
8.AB.30Lammerite-βCu3(AsO4)2Mon. 2/m : P21/b
8.AB.35McbirneyiteCu3(VO4)2Tric.
8.AB.35StranskiiteZn2Cu(AsO4)2Tric. 1 : P1
8.AB.35PseudolyonsiteCu3(VO4)2Mon. 2/m : P21/b
8.AB.40LyonsiteCu3Fe4(VO4)6Orth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

20.10.1ErythriteCo3(AsO4)2 · 8H2OMon. 2/m : B2/m
20.10.2CobaltaustiniteCaCo(AsO4)(OH)Orth. 2 2 2 : P21 21 21
20.10.3RoseliteCa2(Co2+,Mg)(AsO4)2 · 2H2OMon. 2/m : P21/b
20.10.4β-RoseliteCa2Co(AsO4)2 · 2H2OTric.
20.10.5WendwilsoniteCa2Mg(AsO4)2 · 2H2OMon. 2/m : P21/b
20.10.6Cobaltkoritnigite(Co,Zn)(HAsO4) · H2OTric. 1 : P1
20.10.7AerugiteNi8.5(AsO4)2As5+O8Mon. 2/m : B2/m
20.10.9AnnabergiteNi3(AsO4)2 · 8H2OMon. 2/m : B2/m
20.10.10SmolyaninoviteCo3Fe3+2(AsO4)4 · 11H2OOrth.
20.10.11NickelaustiniteCaNi(AsO4)(OH)Orth. 2 2 2 : P21 21 21

Fluorescence of XanthiositeHide

Not fluorescent.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for XanthiositeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bergemann C. (1858), Ueber einige Nickelerze. Journal für Praktische Chemie [1] 75, 239-244.
Davis, R.J., Hey, M.H., Kingsbury, A.W.G. (1965) Xanthiosite and Aerugite. Mineralogical Magazine: 35: 72-83. [Suspected fraud regarding occurrence]
Fleischer, M. (1965) New mineral names. American Mineralogist 50, 2096-2111.
Barbier, J., Frampton, C. (1991) Structures of orthorhombic and monoclinic Ni3(AsO4)2. Acta Crystallographica: B: 457.

Internet Links for XanthiositeHide

Localities for XanthiositeHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Germany (TL)
 
  • Saxony
    • Erzgebirge
      • Johanngeorgenstadt District
C. Bergemann (1858): Ueber einige Nickelerze.- Journal für praktische Chemie [1] 75, 239-244
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium; Lavreotiki Municipality)
      • Lavrion District Mines
        • Lavrion (Laurion; Laurium)
Rieck, B.: Lapis (1999)(7/8),68-76.
UK
 
  • England
    • Cornwall
      • St Stephen-in-Brannel
Davis, R.J., Hey, M.H., and Kingsbury, A.W.G. (1965) Xanthiosite and aerugite. Mineralogical Magazine, vol. 35, n° 269, p. 72-83.; Embrey, P.G. (1978) Fourth supplementary list of British Minerals. Mineralogical Magazine, vol. 42, n° 322, p. 169-177. (referring to Kingsbury)
Mineral and/or Locality  
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